Global Patent Index - EP 3031844 A4

EP 3031844 A4 20170412 - METHOD FOR PRODUCING POLYIMIDE RESIN POWDER, AND THERMOPLASTIC POLYIMIDE RESIN POWDER

Title (en)

METHOD FOR PRODUCING POLYIMIDE RESIN POWDER, AND THERMOPLASTIC POLYIMIDE RESIN POWDER

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES POLYIMIDHARZPULVERS UND THERMOPLASTISCHES POLYIMIDHARZPULVER

Title (fr)

PROCÉDÉ DE PRODUCTION D'UNE RÉSINE POLYIMIDE EN POUDRE, ET RÉSINE POLYIMIDE THERMOPLASTIQUE EN POUDRE

Publication

EP 3031844 A4 20170412 (EN)

Application

EP 14834341 A 20140804

Priority

  • JP 2013163303 A 20130806
  • JP 2013163304 A 20130806
  • JP 2013163308 A 20130806
  • JP 2014070532 W 20140804

Abstract (en)

[origin: EP3031844A1] The present invention provides a method for producing a polyimide resin powder, including the step of reacting (A) a tetracarboxylic acid component containing a tetracarboxylic dianhydride with (B) a diamine component containing an aliphatic diamine in the presence of (C) a solvent containing an alkylene glycol-based solvent represented by the formula (1): wherein Ra 1 represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, Ra 2 represents a linear alkylene group having from 2 to 6 carbon atoms, and n represents an integer of 1-3.

IPC 8 full level

C08G 73/10 (2006.01)

CPC (source: EP US)

C08G 73/1028 (2013.01 - EP US); C08G 73/1032 (2013.01 - EP US); C08G 73/1042 (2013.01 - EP US); C08G 73/105 (2013.01 - EP US); C08G 73/1082 (2013.01 - EP US); C09J 179/08 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3031844 A1 20160615; EP 3031844 A4 20170412; EP 3031844 B1 20240522; CN 105377949 A 20160302; CN 105377949 B 20180403; JP 6565676 B2 20190828; JP WO2015020019 A1 20170302; KR 102208953 B1 20210128; KR 20160039613 A 20160411; TW 201509961 A 20150316; TW I639619 B 20181101; US 2016159984 A1 20160609; US 9670320 B2 20170606; WO 2015020019 A1 20150212

DOCDB simple family (application)

EP 14834341 A 20140804; CN 201480039002 A 20140804; JP 2014070532 W 20140804; JP 2015530892 A 20140804; KR 20167002654 A 20140804; TW 103126955 A 20140806; US 201414905637 A 20140804